问题 选择题

我市几年前种下的许多绿化树苗已逐渐长高,植株内有机物大量增多,这些有机物来自植物的(  )

A.呼吸作用

B.光合作用

C.蒸腾作用

D.根的吸收作用

答案

光合作用是绿色植物把二氧化碳和水合成有机物,释放氧气,同时把光能转变成化学能储存在合成的有机物中的过程;而呼吸作用是分解有机物的过程,蒸腾作用是植物体散失水分的过程.据此可知,植株内有机物大量增多,这些有机物来自植物的光合作用.可见B符合题意.

故选:B

句型转换
阅读理解

Now and again I have had horrible dreams, but not enough of them to make me lose my delight in dreams. To begin with. I like the idea of dreaming, of going to bed and lying still and then, by some queer magic, wandering into another kind of existence. As a child, I could never understand why grown-ups took dreaming so calmly when they could make such a fuss about any holiday, this still puzzles me. I am puzzled by people who say they never dream and appear to have no interest in the subject. It is much more astonishing than it would be if they said they never went out for a walk. Most people do not seem to accept dreaming as part of their lives. They appear to see it as an irritating little habit, like sneezing or yawning I can never understand this. My dream life does not seem as important as my waking life because there is far less of it, but to me it is important.

小题1:What is the author’s attitude toward dreaming?

A.He thinks it puzzling

B.He likes it

C.He is interested in it

D.He doesn’t accept it as part of his life小题2: For the author of the passage, dreaming is________.    .

A.another kind of existence

B.an irritating little habit

C.a horrible but wonderful experience

D.a true reflection of reality小题3:The author of the passage suggests that people who say they never go out for a walk are_____.

A.interesting

B.unbelievable

C.mysterious(难以理解的)

D.lazy小题4:Why does the author of the passage complain?

A.Because most people are overexcited about their dreams

B.Because most people are not interested in talking about their dreams

C.Because most people have had dreams most of the time

D.Because most people consider their dreams of too much importance